Publications by authors named "Achenbach J"

Objective: The Halle continuum (HaKom) is a course for doctors undergoing postgraduate medical training in southern Saxony-Anhalt. It revises the skills and knowledge acquired during undergraduate medical training and develops them on an individual and needs-driven basis. The development and establishment of the three-day ready for (resident on-call) duty () course, which has been held four times a year since 2020, will be used as an example to present the overall HaKom curriculum.

View Article and Find Full Text PDF

Introduction: Armenia's favorable geographical and climatic conditions support mosquitoes, sandflies, and ticks that can transmit various diseases. This study aimed to determine the prevalence of these vectors and circulating arboviruses in Armenia and assess healthcare workers` knowledge of arboviral diseases.

Methodology: In 2021, we conducted fieldwork, combining morphological identification of vectors with polymerase chain reaction (PCR) analysis of pathogens to map the distribution of potential arbovirus vectors across Armenia.

View Article and Find Full Text PDF

This study reports on the physicochemical and antioxidant properties of propolis samples from various regions across Western Australia and identifies some phenolic constituents using high-performance thin-layer chromatography (HPTLC). Total phenolic content (TPC) was determined using a modified Folin-Ciocalteu assay, and antioxidant activity was investigated with the Ferric Reducing Antioxidant Power (FRAP) assay and also visualised and semi-quantified by HPTLC-DPPH analysis. TPC values ranged from 9.

View Article and Find Full Text PDF

The zebrafish (Danio rerio) is becoming a critical component of new approach methods (NAMs) in chemical risk assessment. As a whole organism in vitro NAM, the zebrafish model offers significant advantages over individual cell-line testing, including toxicokinetic and toxicodynamic competencies. A transcriptomic approach not only allows for insight into mechanism of action for both apical endpoints and unobservable adverse outcomes, but also changes in gene expression induced by lower, environmentally relevant concentrations.

View Article and Find Full Text PDF
Article Synopsis
  • - Juvenile Huntington's disease (JHD) features early motor symptoms like speech difficulties, rigidity, and dystonia in childhood, with cognitive decline typically evident through declining school performance.
  • - JHD can be misdiagnosed as autism spectrum disorder or ADHD due to overlapping behavioral symptoms, and specific JHD symptoms include epilepsy, ataxia, and faster disease progression compared to adult-onset forms.
  • - Diagnosis relies on clinical assessment, family history, and DNA analysis, with no current treatment guidelines available; future advancements may include better diagnostic markers like qualitative MRI and serum neurofilament light.
View Article and Find Full Text PDF

: The Total Functional Capacity (TFC) score is commonly used in Huntington's disease (HD) research. The classification separates each disease stage (1-5), e.g.

View Article and Find Full Text PDF

Background: Although the Canadian Consensus Guidelines for Primary Care of Adults with Intellectual and Developmental Disabilities recommends conducting periodic health checks in primary care, uptake is lacking. This study seeks to understand factors influencing the conduct of periodic health checks and identify what needs to change to increase them.

Method: Qualitative data from five stakeholder groups (adults with intellectual and developmental disabilities, primary care providers, administrative staff, family, disability support workers) was guided by the Behaviour Change Wheel and the Theoretical Domains Framework to identify barriers and 'what needs to change' to support periodic health checks.

View Article and Find Full Text PDF

Symptom validity tests (SVTs) and performance validity tests (PVTs) are important tools in sociomedical assessments, especially in the psychosomatic context where diagnoses mainly depend on clinical observation and self-report measures. This study examined the relationship between reaction times (RTs) and scores on the Structured Inventory of Malingered Symptomatology (SIMS). It was proposed that slower RTs and larger standard deviations of reaction times (RTSDs) would be observed in participants who scored above the SIMS cut-off (>16).

View Article and Find Full Text PDF
Article Synopsis
  • A MoAlB MAB phase thin film was created at 800 °C using high-power pulsed magnetron sputtering, revealing various compositional defects such as MoAlB and AlMo coexisting within the matrix.
  • The presence of these defects is thermodynamically feasible, supported by density functional theory simulations, and their atomic-scale imaging was achieved through advanced electron microscopy techniques.
  • Formation energies indicate that some defects form easily in the MoAlB host, while surface diffusion during deposition can lead to variations in composition and the presence of MoB MBene, particularly at grain boundaries.
View Article and Find Full Text PDF
Article Synopsis
  • Foot-and-mouth disease (FMD) is a serious viral infection affecting livestock, and vaccination is critical for controlling its spread in Armenia, especially since it borders countries where FMD is common.
  • A study in three regions of Armenia assessed the immune response of cattle and sheep to a polyvalent vaccine over time, finding that over 90% of vaccinated animals had protective immunity shortly after vaccination, but this declined significantly by 90 days.
  • The findings indicate that while initial vaccination offers strong protection, re-vaccination is necessary to maintain adequate immunity levels in both cattle and sheep, highlighting the need for ongoing vaccination strategies to control FMD in Armenia.
View Article and Find Full Text PDF

Objectives: Standardized extracurricular skills labs courses have been developed in recent decades and are important approaches in peer-assisted medical learning (PAL). To provide high quality training and achieve effective learning strategies, continuous evaluations and quality assessments are essential. This research aims to evaluate quality data from medical students participating in extracurricular skills labs courses at Ruhr-University Bochum to prospectively optimize concepts and didactical training and standardize processes.

View Article and Find Full Text PDF

Aims: Alcohol use alters the reward signaling processes contributing to the development of addiction. We studied the effects of alcohol use disorder (AUD) on brain regions and blood of deceased women and men to examine sex-dependent differences in epigenetic changes associated with AUD. We investigated the effects of alcohol use on the gene promoter methylation of GABBR1 coding for GABAB receptor subunit 1 in blood and brain.

View Article and Find Full Text PDF

The natural environment of southeastern Armenia, which includes the Syunik and Vayots Dzor regions, provides a high biodiversity of flora and fauna, including ectoparasites. Currently, the fauna and ecology of gamasid ticks and their role in the circulation of tularemia in this area are unclear and incomplete. To better understand the persistence of tularemia in Armenia, an assessment of specific hosts and their vectors is needed to evaluate their role in perpetuating tularemia.

View Article and Find Full Text PDF

Lumpy skin disease (LSD) is a highly infectious viral disease of cattle caused by LSD virus (LSDV), which was first reported in Armenia in late 2015. It was identified in pasture-raised cattle near the border with Iran. Currently, vaccination plays a key role in preventing further incursion of disease in high-risk areas.

View Article and Find Full Text PDF

Selective serotonin reuptake inhibitors (SSRIs) are currently the most prescribed class of psychotropic medications. Their increased global manufacture and use have become growing concerns for aquatic toxicologists and environmental biologists, who assess both the direct and indirect effects of substances on the environment and on human health. In order to assess the potential impact of environmentally relevant levels of SSRIs on fish development, behaviour and reproduction, we exposed juvenile and adult zebrafish to a select group of SSRIs using two separate exposure paradigms.

View Article and Find Full Text PDF

Aims: The dopamine receptor D2 (DRD2) is substantially involved in several forms of addiction. In addition to genetic polymorphisms, epigenetic mechanisms have emerged as an important means of regulation. Previously, DRD2 hypo- and hyper-methylation have been observed in alcohol use disorder (AUD).

View Article and Find Full Text PDF

In Canada, the Canadian Environmental Protection Act (1999) requires human health and environmental risk assessments be conducted for new substances prior to their manufacture or import. While this toxicity data is historically obtained using rodents, in response to the international effort to eliminate animal testing, Health Canada is collaborating with the National Research Council (NRC) of Canada to develop a New Approach Method by refining existing NRC zebrafish models. The embryo/larval zebrafish model evaluates systemic (whole body) general toxicity which is currently unachievable with cell-based testing.

View Article and Find Full Text PDF

Objectives: To compare the effects of acupuncture and medical training therapy in combination or individually with usual care on quality of life, depression, and anxiety in patients with tension-type headache.

Methods: In this single-center, prospective, randomized, controlled, unblinded trial, 96 adults (38.7(+/-13.

View Article and Find Full Text PDF

Zebrafish larvae have classically been used as a high-throughput model with which to test both the bioactivity and toxicity of known and novel compounds, making them a promising whole organism New Approach Method in the context of the international momentum to eliminate animal testing. Larvae are generally exposed to the chemicals being tested in a static environment and the concentration-response patterns are calculated based on the initial bath concentrations of the compounds. This approach rarely takes into account the absorption, distribution, metabolism, and excretion of the compounds being tested, which can have a significant effect on the toxicokinetic profiles of the compounds and thus impact the predictive ability of the model.

View Article and Find Full Text PDF

As pig production increases in Africa, it is essential to identify the pathogens that are circulating in the swine population to assess pig welfare and implement targeted control measures. For this reason, DNA samples collected from pigs in Nigeria in the context of African swine fever monitoring were further screened by PCR for porcine circovirus 2 (PCV-2), porcine circovirus 3 (PCV-3), and porcine parvovirus 1 (PPV1). Forty-seven (45%) pigs were positive for two or more pathogens.

View Article and Find Full Text PDF

Objectives: Accurate self-assessment and -reflection of competencies are crucial skills for all health professions. The National Competence-Based Learning Objectives Catalogue (NKLM) guiding medical faculties in Germany points out reflection as a non-technical skill and competency-based medical education (CBME) as important approaches. In this context, the role and structure of curricula and skills labs evolved.

View Article and Find Full Text PDF

Background: The role of neuroinflammation and autoimmune processes in neurodegenerative diseases is not fully understood. Activation of microglia with expression of proinflammatory cytokines supports the hypothesis that immune processes may play an important role in the pathophysiology of Huntington's disease (HD) and thus, immunomodulating therapies might have potential neuroprotective properties. Until now, no disease-modifying therapy (DMT) is available for HD.

View Article and Find Full Text PDF

Catechol is a ubiquitous chemical used in the manufacturing of fragrances, pharmaceuticals and flavorants. Environmental exposure occurs in a variety of ways through industrial processes, during pyrolysis and in effluent, yet despite its prevalence, there is limited information regarding its toxicity. While the genotoxicity and gastric carcinogenicity of catechol have been described in depth, toxicological studies have potentially overlooked a number of other effects relevant to humans.

View Article and Find Full Text PDF

There is a controversy about potentially positive or negative effects of caffeine consumption on onset and disease progression of neurodegenerative diseases such as Huntington’s Disease (HD). On the molecular level, the psychoactive drug caffeine targets in particular adenosine receptors (AR) as a nonselective antagonist. The aim of this study was to evaluate clinical effects of caffeine consumption in patients suffering from premanifest and motor-manifest HD.

View Article and Find Full Text PDF